Protein sitting in milk?

hey my question is how long can protein sit in milk before it starts going bad? meaning say i make a shake and something comes up so i dont get to drink it till like 1hr later or so or longer.. is it still good?

I make mine in the AM and drink them through the day. I do keep them in a thermos and in a refer. If it's in milk...I wouldn't leave it sitting out too long at room temp....I would think it would go bad...depending on how warm the room is.

I've been reading DHT is the culprit. Controlling that will help keep the sebum in check. I also noticed that 10 mins in a tanning bed makes my skin feel way less oily and in 1 sessions dried out any...